Blatterite Mineral Data

Blatterite Mineral Data +

General Blatterite Information

Chemical Formula:

(Mn++,Mg)35Sb3(Mn+++,Fe+++)9(BO3)16O32

Composition:

Molecular Weight = 3,807.71 gm

Magnesium 8.94 % Mg 14.82 % MgO

Manganese 41.48 % Mn 39.12 % MnO / 16.07 % Mn₂O₃

Iron 1.83 % Fe 2.62 % Fe₂O₃

Boron 4.54 % B 14.63 % B₂O₃

Antimony 9.59 % Sb 12.74 % Sb₂O₅

Oxygen 33.61 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺₂₁Mg₁₄Sb₃Mn³⁺_7.75Fe³⁺_1.25(BO₃)₁₆O₃₂

Environment:

From metamorphosed Fe-Mn orebodies.

IMA Status:

Approved IMA 1988

Locality:

Kittel mine, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for Fritz Blatter (1943-), German mineral collector, who discovered the mineral.

Synonym:

ICSD 76890

PDF 45-1435

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Blatterite Crystallography

Axial Ratios:

a:b:c =2.9848:1:0.4952

Cell Dimensions:

a = 37.654, b = 12.615, c = 6.2472, Z = 2; V = 2,967.45 Den(Calc)= 4.26

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.6047(1), 5.243(0.45), 2.27206(0.4),

Crystal Structure:

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Cooper M A , Hawthorne F C , The Canadian Mineralogist , 36 (1998) p.1171-1193, The crystal structure of blatterite, Sb3(Mn,Fe)9(Mn,Mg)35(BO3)16O32,, and structural hierarchy in Mn-bearing zigzag borates

Physical Properties of Blatterite

Cleavage:

[001] Perfect

Color:

Black.

Density:

4.7

Diaphaniety:

Opaque

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

6 - Orthoclase

Luster:

Sub Metallic

Streak:

brown

Optical Properties of Blatterite

Optical Data:

Biaxial (-), a=1.91, b=1.97, g=2, bire=0.0900

RL Anisotrophism:

Weak to distinct, in shades of grayish brown.

RL Bireflectance:

Buff, creamy buff, pale buff.

RL Color:

Exhibits red-orange internal reflections.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Blatterite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	11.10	12.40
420 nm	10.90	12.20
440 nm	10.70	12.00
460 nm	10.50	11.90
480 nm	10.40	11.80
500 nm	10.30	11.70
520 nm	10.20	11.60
540 nm	10.10	11.50
560 nm	10.00	11.40
580 nm	9.98	11.40
600 nm	9.97	11.30
620 nm	9.95	11.30
640 nm	9.93	11.20
660 nm	9.91	11.20
680 nm	9.88	11.10
700 nm	9.86	11.10

**Calculated Relative Intensity Colors of Blatterite in Air**
Relative Intensity	0%	90%	100%	180%	270%	360%	450%	540%	630%	720%	810%	880%
R₁
R₂

Calculated Properties of Blatterite

Electron Density:

r_electron=4.01 gm/cc
note: r_Blatterite=4.26 gm/cc.

Fermion Index

Fermion Index = 0.01852
Boson Index = 0.98148

Photoelectric:

PE_Blatterite= 41.67 barns/electron
U=PE_Blatterite x r_electron= 167.10 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Blatterite is Not Radioactive

Blatterite Classification

Dana Class:

24.2.7.1 (24)Borates - Anhydrous

(24.2)where (A)2 BO2 [XO3]

(24.2.7)Dana Group

24.2.7.1 Blatterite (Mn,Mg)35Sb3(Mn,Fe)9(BO3)16O32 Pnnm 2/m 2/m 2/m

Strunz Class:

V/G.04-90 V - Nitrates, Carbonates and Borates

V/G - "Insel" borates [BO3]3- "inseln"

V/G.04 - Ludwigite group

V/G.04-10 Ludwigite Mg2FeBO5 Pbam 2/m 2/m 2/m

V/G.04-20 Vonsenite Fe2FeBO5 Pbam 2/m 2/m 2/m

V/G.04-30 Azoproite (Mg,Fe)2(Fe,Ti,Mg)BO5 Pbam 2/m 2/m 2/m

V/G.04-40 Chestermanite Mg2(Fe,Mg,Al,Sb)BO3O2 Pbam 2/m 2/m 2/m

V/G.04-50 Fredrikssonite Mg2(Mn,Fe)O2(BO3) Pbam 2/m 2/m 2/m

V/G.04-60 Bonaccordite Ni2FeBO5 Pbam 2/m 2/m 2/m

V/G.04-70 Takeuchiite Mg2MnO2(BO3) Pnnm 2/m 2/m 2/m

V/G.04-80 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m

V/G.04-90 Blatterite (Mn,Mg)35Sb3(Mn,Fe)9(BO3)16O32 Pnnm 2/m 2/m 2/m

V/G.04-100 Gaudefroyite Ca4Mn3-x(BO3)3(CO3)(O,OH)3 P 6₃ 6

Other Blatterite Information

References:

NAME( Dana8) PHYS. PROP.(AmMin, V84, p1467) OPTIC PROP.(AntBidBlaNic5, Dana8)

See Also:

Links to other databases for Blatterite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Blatterite Specimen Label here :

Blatterite

(Mn++,Mg)35Sb3(Mn+++,Fe+++)9(BO3)16O32
Dana No: 24.2.7.1 Strunz No: V/G.04-90
Locality:

Notes: